Cooking stove



931- J. G. SCHEER 1,817,712

COOKING STOVE Filed Sept. 18, 1929 2 Sheets-Sheet l v Sag-reef age 4 331, J. a. SCHEER 1,817,712

COOKING STOVE Filed Sept. 1a, 1929 2 Shee'ts-Sheet 2 u: -k U a Patented Aug. 4, 1931 tsianz JOHAN GEOJRG SCEEER, OF LIDINGO, SWEDEN, ASSIGNOR T SVENSKA AKTIEBOLAGET GASACCUM'ULATOR, OF STOGKEOLM-LIDINGO, SWEDEN Application filed September 18, 1929, Serial No. 393,473, and in Sweden October 11, 1928.

The present invention refers to an arrangement in cooking stoves, in which a cooking plate constituting a heat accumulator of metal, is combined with a fireplace having a sjstorer for solid fuel, the fuel storer being surrounded by a tube, the so-oalled fire tube, which supports the cooking plate, and forms an interspace in which the combustion gases escape fromthe fire lace. According as the to temperature of the re tube varies, its length will vary, whereb the cooking plate will be raised or lowere in relation to the stove plate, which is an inconvenience,

According to the invention, this inconvenience is avoided by making the fire tube separate from the other parts of the stove, so that it may ex and independent of said parts. The fire tn 0 is supported by means of an arrangement, so constructed that the part of the fire tube, supporting the cooking plate, practically does not change. its vertical position. Thus the position of the cooking plate will also be constant or nearly constant in relation to the stove plate. The fire tube is arranged separate from the lower part of the fireplace,- either from the ashpit or from a part connected with same, whereby 'a suitable arrangement may be placed between these parts of the stove, permitting a certain movement at varying temperatures, such as a sand seal or a device similar to a packing box.

In the accompanying drawings which show some different forms of carrying out the invention,

Figure 1 is a sectional elevation of my improved cooking stove,

Figure 2 is a sectional elevation similar to that shown in Figure 1 but em loying modified supporting means for the re tube,

Figure 3 is a further sectional elevation similar to that shown in Figure 1 but employing another modification of the supporting means for the fire tube, and

Figure 4 is a sectional elevation of another form of the invention employing still another modified construction of the supporting means for the fire tube and showing the outlet pipe for the combustion gases opening 1n a their supporting able by ineans of a known device-such as a screw valve 15. At its upper part, the fire tube 1 is provided with a pipe or tube 20 which forms a flue for the escape of the combustible gases and is also formed with flanges, studs or the like 7, which by means of ad usting screws 8,v are supported by studs or abutments 9, which are fixed in relation to the mantle 14 of the stove.

When heated, the fire tube 1 will expand, which expansion is not transmited to the cooking plate 2 owing to the sand seal 3.

That part of the fire tube, situated above the supporting point of the studs, 7, is only very slightly expanded; consequently the cooking plate 2, placed on the fire tube, will not essentially alter its vertical position in relation to the stove plate 10. On mounting the cooking stove, the position of the cook- 1ng plate in relation to the stove plate may be adjusted by means of the adjusting 1 screws 8.

Figure 2 shows another form of carrying out the invention. According to this constructlon the flanges or studs 7 are prolongated laterally from the'fire tube 1 and extend downwards so that theykeep comparatlvely cool, and for this reason they only ex pand slightly. It is evident that the cookflanges or studs 7 have their fastening place at the lower part of the fire tube 1 but have oint near to the cooking plate 2, and exten so close to the fire tube, that their temperature will be nearly the same as the temperature of the fire tube, and for this reason they expand as much as the fire tube. A loose connection 3 is arranged between the fire tube 1 and the ashpit 4 in order to prevent the transmission of the expansions of the fire tube to the cooking plate 2.

Figure 4 shows another form of carrying out the invention, in which supports 10 extend upwards from the bottom of the cooking stove, and support the fire tube 1 by means of flanges or studs 7 and adjusting screws 8. For permitting lateral movements of the fire tube 1, the sup orts 10?, by means of a joint or link 11, may Ee supported by a foot 12. The supports 10 are suitably placed laterally at such a distance from the fire tube 1 and the fireplace13, that they keep comparatively cool and are only slightly subject to varying temperatures.

The construction shows a connecting device 3 between the fire tube 1 and the ashpit of the stove, in the shape of a device similarto a packing box.

Having now described my invention, what I claim as new and desire to secure by Letters Patent is p 1. A cooking stove comprising a cooking plate combined with a storer for solid fuel, a fire tube surrounding said storer to form a combustion chamber and'to support the said cooking plate, means for exhausting the combustion gases from" said chamber, means providing for the free expansion of said fire tube without substantial alteration of the position of the cooking plate relative to the stove plate and means for supporting the fire tube.

2. A cooking stove comprising a cooking plate combined with a storer for solid fuel, a fire tube surrounding said storer to form a combustion chamber and to support the said cooking plate, means for exhausting the combustion gases from said chamber, means providing for the free expansion of said fire tube without substantial alteration of the position of the position of the cooking plate relative to the stove plate and means, supported from the bottom of thestove, for supporting the fire tube.

3. A cooking stove comprising a cooking plate combined with a storer for solid fuel, a fire tube surrounding said storer to form a combustion chamber and to support the said cooking plate, means for exhausting the combustion gases from said chamber, means providing for the free expansion of said fire tube without substantial alteration of the position of the cooking plate relative to the stove plate and means, supported from the bottom of the stove, for supporting the fire tube, said means being adjustable in a vertical direction.

4. ,A cooking stove comprising a cooking plate combined with a storer for solid fuel,

a fire tube, surrounding said storer to form a combustion chamber and to support the said cooking plate, means for exhausting the combustion gases from said chamber, means providing for the free expansion of said fire tube without substantial alteration of the position of the cooking plate relative to the stove plate and means, supported from the bottom of the stove, for supporting the fire tube, said means being adapted to permit lateral movements of the fire tube.

5. A cooking stove comprising a cooking plate combined with a storer for solid fuel, a fire tube surrounding said storer to form a combustion chamber and to support the said cooking plate, means for exhausting the combustion gases from said chamber, means provided at the lower part of the fire tube for the free expansion of said fire tube without substantial alteration of the position of the cooking plate relative to the stove plate and means for supporting the fire tube from the bottom of the stove.

6. A cooking stove comprising a cooking plate combined with a storer for solid fuel, a fire tube surrounding said storer to form a combustion chamber and to support the said cooking plate, means for exhausting the combustion gases from said chamber, means providing for the free expansion of said fire tube without substantial alteration of the position of the cooking plate relative to the stove plate, and means, supported from the bottom of the stove, for supporting the fire tube, said means being adapted to permit lateral movements of the fire tube, said second named means being adjustable in a vertical direction and adapted to permit lateral movements of the fire tube.

7 A cooking stove comprising a cooking plate combined with a storer for solid fuel, a fire tube surrounding said-storer to form a combustion chamber and to support the said cooking plate, means for exhausting the combustion gases from said chamber. means provided at the lower part of the fire tube, for the free expansion of said fire tube without substantial alteration of the position of the cooking plate relative to the stove plate and means for supporting the fire tube from the bottom of the stove, said second named means being adjustable in a vertical direction.

'8. A cooking stove comprising a cooking plate combined with a storer for solid fuel, a fire tube surrounding said storer to form a combustion chamber and-to support the said cooking plate, means for exhausting the combustion gases from said chamber, means provided at the lower part of the fire tube, for the free expansion of said fire tube without substantial alteration of the position of the cooking plate relative to the stove plate, and means for supporting the fire tube from the bottom of thestove, said second named means being adapted to permit lateral movements of the fire tube.

9. A cooking stove comprising a cooking plate combined with a storer for solid fuel, a fire tube surrounding said storer to form a combustion chamber and to support the said cooking plate, means for exhausting the combustion gases from said chamber, means provided at the lower part of the fire tube, for 19 the free expansion of said fire tube without substantial alteration of the position of the cooking plate relative to the stove plate and means for supporting the fire tube from the bottom of the stove, said second named means being adjustable in a vertical direction and adapted to permit lateral movements of they fire tube.

10. A cooking stove comprising a cooking plate combined with a storer for solid fuel, 20 a fire tube surrounding said storer to form a combustion chamber and to support the said cooking plate, means for exhausting the combustion gases from said chamber, means o providing for the free expansion of said fire tube Without substantial alteration of the position of the cooking plate relative to the stove plate andmeans for supporting the fire tube comprising supports extending upwardly from the bottom of the cooking stove and which support the fire tube by means of flanges or studs and adjusting screws thereby permitting vertical adjustment, the said supports being pivotally connected at their lower ends to support'brackets secured to the bottom of the stove whereby lateral movement may be imparted to the fire tube.

In testimony whereof Ihave signed my name to this s cification. 

